Ichetucknee Springs also permits scuba diving if you are cave certified during certain times of the year. There is a small fee for diving. Blue Hole (right) has an extensive cave system with a strong outflow. The bottom of the hole opening is at a 30 foot depth. The other main headspring, Ichetucknee Spring, has a large basin and can be snorkeled. Depths reach about 22 feet. No scuba diving is allowed in this spring.